--- src/unix/darwin-proctitle.c.orig
+++ src/unix/darwin-proctitle.c
@@ -41,9 +41,11 @@
   strncpy(namebuf, name, sizeof(namebuf) - 1);
   namebuf[sizeof(namebuf) - 1] = '\0';
 
+#if TARGET_OS_IPHONE || (MAC_OS_X_VERSION_MIN_REQUIRED >= 1060)
   err = pthread_setname_np(namebuf);
   if (err)
     return UV__ERR(err);
+#endif
 
   return 0;
 }
--- src/unix/fs.c.orig
+++ src/unix/fs.c
@@ -1061,7 +1061,7 @@
 
     return -1;
   }
-#elif defined(__APPLE__)           || \
+#elif (defined(__APPLE__) && (MAC_OS_X_VERSION_MAX_ALLOWED >= 1050)) || \
       defined(__DragonFly__)       || \
       defined(__FreeBSD__)         || \
       defined(__FreeBSD_kernel__)
@@ -1441,7 +1441,7 @@
   dst->st_blksize = src->st_blksize;
   dst->st_blocks = src->st_blocks;
 
-#if defined(__APPLE__)
+#if defined(__APPLE__) && (MAC_OS_X_VERSION_MAX_ALLOWED >= 1050)
   dst->st_atim.tv_sec = src->st_atimespec.tv_sec;
   dst->st_atim.tv_nsec = src->st_atimespec.tv_nsec;
   dst->st_mtim.tv_sec = src->st_mtimespec.tv_sec;
--- src/unix/process.c.orig
+++ src/unix/process.c
@@ -36,7 +36,9 @@
 #include <poll.h>
 
 #if defined(__APPLE__)
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
 # include <spawn.h>
+#endif
 # include <paths.h>
 # include <sys/kauth.h>
 # include <sys/types.h>
@@ -387,7 +389,7 @@
 #endif
 
 
-#if defined(__APPLE__)
+#if defined(__APPLE__) && (MAC_OS_X_VERSION_MIN_REQUIRED >= 1050)
 typedef struct uv__posix_spawn_fncs_tag {
   struct {
     int (*addchdir_np)(const posix_spawn_file_actions_t *, const char *);
@@ -588,9 +590,11 @@
       }
     }
 
+#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
     if (fd == use_fd)
         err = posix_spawn_file_actions_addinherit_np(actions, fd);
     else
+#endif
         err = posix_spawn_file_actions_adddup2(actions, use_fd, fd);
     assert(err != ENOSYS);
     if (err != 0)
@@ -839,7 +843,7 @@
   int exec_errorno;
   ssize_t r;
 
-#if defined(__APPLE__)
+#if defined(__APPLE__) && (MAC_OS_X_VERSION_MIN_REQUIRED >= 1050)
   uv_once(&posix_spawn_init_once, uv__spawn_init_posix_spawn);
 
   /* Special child process spawn case for macOS Big Sur (11.0) onwards
--- src/unix/tty.c.orig
+++ src/unix/tty.c
@@ -85,7 +85,7 @@
   int dummy;
 
   result = ioctl(fd, TIOCGPTN, &dummy) != 0;
-#elif defined(__APPLE__)
+#elif defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
   char dummy[256];
 
   result = ioctl(fd, TIOCPTYGNAME, &dummy) != 0;
--- src/unix/udp.c.orig
+++ src/unix/udp.c
@@ -938,6 +938,7 @@
     !defined(__ANDROID__) &&                                        \
     !defined(__DragonFly__) &&                                      \
     !defined(__QNX__) &&                                            \
+    (!defined(__APPLE__) || (MAC_OS_X_VERSION_MAX_ALLOWED >= 1070)) && \
     !defined(__GNU__)
 static int uv__udp_set_source_membership4(uv_udp_t* handle,
                                           const struct sockaddr_in* multicast_addr,
@@ -1131,6 +1132,7 @@
     !defined(__ANDROID__) &&                                        \
     !defined(__DragonFly__) &&                                      \
     !defined(__QNX__) &&                                            \
+    (!defined(__APPLE__) || (MAC_OS_X_VERSION_MAX_ALLOWED >= 1070)) && \
     !defined(__GNU__)
   int err;
   union uv__sockaddr mcast_addr;
--- test/test-fs.c.orig
+++ test/test-fs.c
@@ -1410,7 +1410,7 @@
   ASSERT(0 == uv_fs_fstat(NULL, &req, file, NULL));
   ASSERT(req.result == 0);
   s = req.ptr;
-# if defined(__APPLE__)
+# if defined(__APPLE__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050)
   ASSERT(s->st_birthtim.tv_sec == t.st_birthtimespec.tv_sec);
   ASSERT(s->st_birthtim.tv_nsec == t.st_birthtimespec.tv_nsec);
 # elif defined(__linux__)
@@ -1451,7 +1451,7 @@
   ASSERT(s->st_size == (uint64_t) t.st_size);
   ASSERT(s->st_blksize == (uint64_t) t.st_blksize);
   ASSERT(s->st_blocks == (uint64_t) t.st_blocks);
-#if defined(__APPLE__)
+#if defined(__APPLE__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050)
   ASSERT(s->st_atim.tv_sec == t.st_atimespec.tv_sec);
   ASSERT(s->st_atim.tv_nsec == t.st_atimespec.tv_nsec);
   ASSERT(s->st_mtim.tv_sec == t.st_mtimespec.tv_sec);